diff options
Diffstat (limited to 'drivers/ata/pata_hpt366.c')
| -rw-r--r-- | drivers/ata/pata_hpt366.c | 49 |
1 files changed, 35 insertions, 14 deletions
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c index c15c8dc3a6d..25d3cd7e74f 100644 --- a/drivers/ata/pata_hpt366.c +++ b/drivers/ata/pata_hpt366.c @@ -27,7 +27,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_hpt366" -#define DRV_VERSION "0.5.1" +#define DRV_VERSION "0.5.3" struct hpt_clock { u8 xfer_speed; @@ -339,6 +339,8 @@ static struct scsi_host_template hpt36x_sht = { .slave_configure = ata_scsi_slave_config, .slave_destroy = ata_scsi_slave_destroy, .bios_param = ata_std_bios_param, + .resume = ata_scsi_device_resume, + .suspend = ata_scsi_device_suspend, }; /* @@ -381,6 +383,27 @@ static struct ata_port_operations hpt366_port_ops = { }; /** + * hpt36x_init_chipset - common chip setup + * @dev: PCI device + * + * Perform the chip setup work that must be done at both init and + * resume time + */ + +static void hpt36x_init_chipset(struct pci_dev *dev) +{ + u8 drive_fast; + pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4)); + pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78); + pci_write_config_byte(dev, PCI_MIN_GNT, 0x08); + pci_write_config_byte(dev, PCI_MAX_LAT, 0x08); + + pci_read_config_byte(dev, 0x51, &drive_fast); + if (drive_fast & 0x80) + pci_write_config_byte(dev, 0x51, drive_fast & ~0x80); +} + +/** * hpt36x_init_one - Initialise an HPT366/368 * @dev: PCI device * @id: Entry in match table @@ -415,7 +438,6 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id) u32 class_rev; u32 reg1; - u8 drive_fast; pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xFF; @@ -425,14 +447,7 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id) if (class_rev > 2) return -ENODEV; - pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4)); - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78); - pci_write_config_byte(dev, PCI_MIN_GNT, 0x08); - pci_write_config_byte(dev, PCI_MAX_LAT, 0x08); - - pci_read_config_byte(dev, 0x51, &drive_fast); - if (drive_fast & 0x80) - pci_write_config_byte(dev, 0x51, drive_fast & ~0x80); + hpt36x_init_chipset(dev); pci_read_config_dword(dev, 0x40, ®1); @@ -453,9 +468,15 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id) return ata_pci_init_one(dev, port_info, 2); } +static int hpt36x_reinit_one(struct pci_dev *dev) +{ + hpt36x_init_chipset(dev); + return ata_pci_device_resume(dev); +} + + static const struct pci_device_id hpt36x[] = { { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), }, - { }, }; @@ -463,7 +484,9 @@ static struct pci_driver hpt36x_pci_driver = { .name = DRV_NAME, .id_table = hpt36x, .probe = hpt36x_init_one, - .remove = ata_pci_remove_one + .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = hpt36x_reinit_one, }; static int __init hpt36x_init(void) @@ -471,13 +494,11 @@ static int __init hpt36x_init(void) return pci_register_driver(&hpt36x_pci_driver); } - static void __exit hpt36x_exit(void) { pci_unregister_driver(&hpt36x_pci_driver); } - MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("low-level driver for the Highpoint HPT366/368"); MODULE_LICENSE("GPL"); |